This value can grow higher than 16k, but it clamped at packet receive
time if over that limit. Instead of failing here, just clamp to the same
limit.
Signed-off-by: Dan Smith <danms@xxxxxxxxxx>
Cc: serue@xxxxxxxxxx
Cc: orenl@xxxxxxxxxxx
---
net/ipv4/checkpoint.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/net/ipv4/checkpoint.c b/net/ipv4/checkpoint.c
index 788e110..c80324f 100644
--- a/net/ipv4/checkpoint.c
+++ b/net/ipv4/checkpoint.c
@@ -429,10 +429,8 @@ static int inet_precheck(struct socket *sock, struct ckpt_hdr_socket_inet *in)
/* do_tcp_setsockopt() quietly makes this coercion */
if (in->tcp.window_clamp < (SOCK_MIN_RCVBUF / 2))
in->tcp.window_clamp = SOCK_MIN_RCVBUF / 2;
- else if (in->tcp.window_clamp > 65535U) {
- ckpt_debug("invalid window_clamp value\n");
- return -EINVAL;
- }
+ else
+ in->tcp.window_clamp = min(in->tcp.window_clamp, 65535U);
if (in->tcp.rcv_ssthresh > (4U * in->tcp.advmss))
in->tcp.rcv_ssthresh = 4U * in->tcp.advmss;
--
1.6.2.5
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